Electron tube apparatus



2 Sheets-Sheet l (ff/27u dov/,

BY a u v ATTORNEY fio.

tube socket with the tube Patented July 14, 1931 LOUIS A@ GEB-HARD ANI)GOIRR'IlzTLl RUDOLPAHQ COLUMBIA-f, ASSLEGrlTOIt'S,` BY MESH-ll ASSIPANE-UA CORPOM'LION 05E* CALIFORNIA GNMENTS,\ 10- FEDERAL TELEGRIAPHCGM- ELECTRON TUBE APPARATUS Appiieation fue@ May 3, 19er." serial N6.188,481.

Our invention relates broadly to' electron tube apparatus and moreparticularly to? a water cooled mounting" for high power electron tubes.

Oneof the objects of our invention is to provide an improved resilient'support for high power' electron tubes having vmeans'for circulating acooling :duid about the anode ofthe tube, -1

I notherobje'ct of our inventionv is to provide a hi-ghpowertube supporthaving a' water circulating jacket' arranged to receive tubes of'differing anode sizes and arranged o'r maintaining the temperature of atube in the support substantially constant during long periods ofjoperation.

Our inventionwill be'more fully understood from they specificationhereinafter follow-ing by reference to the accompanying drawingsinwhich:

Figure '1"illustrates the improved electron vtubesuppcrti `and'Waterceolng j acket sh'wn in cross-sect'ioiiI embodying' the principlesof our invention Fig, 2 isaperspective'viewof the removable sleeve'v'vhichy i'sused i'n adapting the tube mounting" for diilering' sizes'of tubes;'Fig; Sis a cross#sectienall view ofthe removed; and Fig. 4l isa' lateralcrossssectional' view through ,the

tube" support taken' oir lineV 4-4l of Figi 1.

Owing to" variatiors insize of ane'desj of water-cooled@ tubes ofdifferent manufactufersf, we have vround it necessary to constriuctsocket that' is' quickly adaptable to tnbesfof various'lnanufactu-rers.This isac* complished by the insertion or removalv of a metal sleeve 1insifdfejthe water jacket 12, the

thickness of the wall on'said metal sleevebeingr such as to reducethewater space to a predetermined best value, and thus accommodate atubefhayinga smaller anode. The tubeV mounting' is* provided with headerconstructed of twoparts as indicated by reference characters 1f'an'd2.Header'portion 2 isl secured to fluid jacket 12 near lone end thereof.The parts 1 and2' of the header are se' shaped that their adjacentportions" form Vespace for passage of cooling' fluidl from" the jacket12 tothe outlet pipef22`. The joint between' the headerpo'rtioiis 1'`and' 2 ismade lsecured to water 'for'rnjed' water passage 14 forv thepurpose of land air bubbles while wate'rtight by means of gasket 5.yTheparts of the header be held together byserews or' inv other suitablemanner. The divided construction of the' head' .also an afd'va'iltagevof easy access to the inner cham-ber for cleaning; purposes.

Werr provide centering screws 3 for' centering' the anode 16 of tube 17withinv the 4jacket 4and" thusequalize the water space 15. The

centering' screws when set for the larger tube need not be disturbed forthe insertion of the' sleeve 4 for the accommodation of the smallertubei The sleeve 4: having slots 6 affords at its lower end' is adaptedto slip over the pins 3L The sl'eeve'tin turn' has secured to itselfthree additional pins for centering a smaller anode withinizinlg thewater space 15. The sleeve' 4 also may have a lug 9 attached to itsupper endto prevent accidental raisin-g` of the' sleeve and closingofthe watere'xit 18 aroundY the -neck of the tube.v The sleeve 4, also hasa" slotV 8 cut the' full length ofy its side, the purpose of 'which isto'ca'usey the' sleeve to spring out when placed insidethe'waterjaeketi2' andfit snugly against thewal'ls of the. latter.` The slotis madenarrow to prevent excess of wadiameter anode: are held pla-ce by a metal'ring 10T fas'tenfedtothe outerw'all'of the water jacket 12', highenough tov centerproperly* a vacuum tube" of' minimum length, while thewater jacket is madelongfenough to accommodate a vacuum tubeof m'aiimuinlength.

A detachable ehu member or header i3 is j acket 12 having a` spirallypreventing the formationA of eddy currents the water is-'passing throughthe jacketl 'It' has been found that after'a tube has been in use forsome time there is a' tendency of' the tubeto adhere to the socketv andbreakag'emay result if force is used initsremoval. In orderto facilitateremoval", slots 19 have been" provided in the socket head 1 to permitof' the insertion of narrew screw'-v driver orsimilar vtool 11n-der theshoulder'2'0 ofT the'tiibe' 17' andI thereby *loosen* the tube) Without"injury'.` Holes 11 the sleeve 'and Iequalare provided for the insertionof a hook for withdrawing sleeve 4 from jacket 12 when a different sizetube is to be mounted in the socket.

The water enters at 21, circulates around the annular space 15 and overthe gap 18, and leaves at the pipe 22. An electrostatic shield 23 isprovided at the top of the tube mounting. Slidablelatches 24 and 25enter opposite sides of the'shield for locking the tube 17 in thesocket.

A frame structure for mounting the tube is concentrically disposed aboutthe tube. A pair of insulators 26 and 27 carry the frame structure 28 onwhich is mounted the ring -members 29 and 30. Spiral spring members Y 31and 32 are disposed between the ring members 29 and 30 and the header 2and end member or header 13 for resiliently suspending the tubestructure and preventing excess shocks and vibrations reaching the tube17.

The structure of tube mounting according to our invention has been foundto be highly practical in its construction and successful in itsoperation, and while we have described the invention in its preferredembodiment, we desire that it be understood that modifications may bemade and that no limitations upon the invention are intended other thanare imposed by the scope claims. f What we claim as new and desire tosecure by Letters Patent of the United States is as follows: Y

1. A mounting for a high power electron tube having an elongateddepending anode comprising a resiliently supported jacket, connectionsfor circulatingfluid through said ljacket and a removable sleevearranged to be inserted in or removed from said jacket for modifying thecross-sectional area of said jacket.

2. An electron tube mounting comprising a vertically extendingcylindrical jacket, means for supporting opposite ends of saidcylindrical jacket, an internal sleeve member arranged to be inserted inorV removed from said cylindrical jacket, and means carried by saidsleeve for centering an electron tube within said cylindrical jacket.l

' 3. An electron tube mounting comprising a cylindrical fluidcirculating jacket for the circulation of a cooling fluid, means forresiliently suspending said cylindrical jacket in a position to receivean electron tube of the elongated. anode type and a resilient sleevemember insertable within said cylindrical jacket for centeringV theelongated anode of the electron tube carried by said mounting and'formodifying the size of the fluid circulating gap around said electrontube.

4. An electron tube mounting for receiving the cylindrical anodeof ahigh power electron tube, a fluid circulating] acket, means for`resiliently supporting opposite` ends of `of the appended lindricalanode, said cylindrical anode vprosaid fluid circulating jacket in asubstantially vertical position, a resilient sleeve member insertableinto said'fluid circulating jacket, said resilient sleeve membercentering the anode of the electron tube within said jacket forcontrolling the velocity of flow of cooling fluid around the sides ofsaid anode.

5. An electron tube mounting comprising a cylindrical acket resilientlyyysuspended in a substantially vertical plane and arranged to receive thecylindrical anode of a high power electron tube, a plurality of meansprotruding laterally through said cylindrical jacket f or centering'theelectron tube therein and a removable sleeve member having a pluralityof longitudinally extending slots' therein, said sleeve member beinglongitudinally insertable within said jacket and supported by said meansfor modifying the size of the fluid gap between the anode of saidelectron tubev and the walls of said jacket for controlling the velocityof flow-of cooling fluid over said anode.

' 6. An electron tube mounting comprising a frame structure, acylindrical acket resiliently mounted in said framel structure and arl'ranged to receive the cylindrical anode of a high power electron tube, acylindrical sleeve member slotted throughout its length and arranged tobe inserted within said cylindrical, jacket, adjustable Vscrew devicespassing laterally through saidcy-lindricaljacket, said cylindricalsleeve being provided with slots for receiving Y said adjustable screwdevices whereby said screw devices support said cylindrical sleeve in apredetermined position around the cylindrical anode of the electron tubefor controlling the velocity of flow 0f the cooling fluid over saidanode.

l7. An electron tube mounting comprisinga pair of headers, acylindricaljacket extending between said headers, a frame structure,resilient means disposed betweensaid frame structure and each.y of saidheaders, one. of

`said headers being centrally divided for the,A

insertion of a cylindrical sleeve-within said cylindrical jacket, saidsleeve having means for centering the anode of an electron tube withinsaid cylindrical jacket for controllin the velocity of flow of coolingfluid over said anode. 'A

-8. An electron tube mounting comprising a :frame structure, resilientmeans extending from said frame structure, a header supported by each ofsaid resilient means, a fluid f;

circulating jacket extending between said headers, one of said headersbeing divided into two sections and having means therein for carrying anelectron tube having la cytruding through the divided header andextending into said fluidcirculatingjacket, means for centering an anodetherein, a removable sleevememberarranged to be supported on `saidcentering means around ysaid r anode for controlling the fluid gaparound said anode and increasing the velocity of flow of cooling meansextending from said sleeve in engagement with said anode.

9. An electron tube mounting comprising a frame structure, resilientmeans extending in opposite directions from said frame structure, aheader supported by each of said re silient means, a fluid circulatingjacket disposed between said headers, said jacket extending into oneheader with an annular gap between the upper extremity thereof and saidjacket, screw devices extending through said fluid circulating jacket, acylindrical sleeve member insertable within saidl fluid circulatingjacket and supported by said screw devices, said cylindrical sleevemember having an upwardly extending lug at its upper extremity forengagement with the extremity of said header for normally preventingmovement of said cylindrical sleeve member beyond the upper edge of saidcylindrical jacket, means carried by said cylindrical sleeve member forcentering the anode of an electron tube within said cylindrical jacketwhereby a fluid gap is maintained around the sides of said anode andthrough said last mentioned header for maintaining said electron tube atlow operating temperature.

LOUIS A. GEBHARD. CORRIE F. RUDOLPH.

fluid and auxiliary centering

